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arXiv 2402.04682gr-qchep-th
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引力解耦与空气动力学:喷气推进实验室中的黑洞与类比引力

Gravitational decoupling and aerodynamics: black holes and analog gravity in a jet propulsion lab

R. Casadio, C. Noberto Souza, R. da Rocha

AI总结:

本文通过引力解耦方法将Reissner-Nordström毛状黑洞的准正则模式与德·拉瓦尔喷管中的跨音速声波联系起来,利用空气动力学类比实验测试流体扰动,并给出了喷管各物理量随黑洞参数的变化关系。

摘要:

本文建立了沿德·拉瓦尔喷管传播的跨音速声波与从毛状黑洞发出的准正则模式之间的联系,其中毛状黑洞是通过将引力解耦方法应用于Reissner-Nordström几何得到的。空气动力学特征提供了一个类比装置,用于在产生准正则模式的德·拉瓦尔喷管中实验测试流体流动扰动。特别地,喷管形状、压力、马赫数、温度、密度和推力系数分布被确定为黑洞参数在多个多极阶数下的函数。还研究了不同泛音下的黑洞准正则模式频率,并评估了喷管的品质因数。

英文摘要:

A connection is established between transonic sound waves propagating along a de Laval nozzle and quasinormal modes emitted from hairy black holes obtained with the gravitational decoupling method applied to the Reissner-Nordström geometry. Aerodynamical features provide an analogue setup to experimentally test fluid flow perturbations in a de Laval nozzle producing quasinormal modes. In particular, nozzle shape, pressure, Mach number, temperature, density, and thrust coefficient profiles are determined as functions of the black hole parameters for several multipole numbers. The black hole quasinormal mode frequencies are also investigated for different overtones, evaluating the quality factor of the nozzle.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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